Imperial College of Science; Technology and Medicine
发明人:
申请号：
EP20151464.3
公开号：
EP3659516A1
申请日:
2017.03.17
申请国别(地区):
EP
年份:
2020
代理人:
摘要：
A method of determining a measure of wave speed or wave intensity in a fluid conduit comprises uses ultrasound measurements to determine the conduit diameter, as a function of time, at a longitudinal position of the conduit, and uses ultrasound measurements to determine fluid velocity, as a function of time, in a volume element at said longitudinal position of the conduit. The ultrasound measurement to determine fluid velocity is effected by tracking objects within the fluid flow in successive frames sampling the volume element, and obtaining displacement vectors for the objects. A wave speed may be determined from a ratio of the change in fluid velocity at the longitudinal position as a function of time and the change in a logarithmic function of the conduit diameter as a function of time. A measure of wave intensity may be determined as a function of change in determined conduit diameter and corresponding change in fluid velocity.
